John, thaks for the reply; My problem was the engine I bought had what seems to be 427 rod bolts in it. This took some time to figure out. They have an off-set head that hits the cam flats between the lobes. The cam in the engine had grooves ground in the flats. I replaced the cam and didn't want to grind similar grooves in the new cam.
After a lot of head-scratching, I've decided to grind a flat on the bolt instead of grinding the cam. I've found out there are at least 2 types of 235 bolt head design; one with a 'pent-roof' and the other looks like it has 'wings' on the cam side. I'm grinding the heads to look like the 'pent-roofs' and chacking the clearance of each one (.060).
The engine is stock stroke and rods, .060 over aluminum JAHNS pop-up pistons (no, I don't know the compression ratio). The engine will not be run hard when installed (famous last words!!!).
If you have a set of 12 (of either design) you'd like part with, I'd be glad to buy them.
